Coupling member



June 9, 1925. 1,541,338

D. F. FESLER COUPLING MEMBER Filed Fel;L 14, 1921 -l-I. w3

Paendgaane 9, 1e25.

' UNITED :sIArss PATENT omnes.v

DOUGLAS r. manager EvANs'rON, ILLINOIS, A'ssIeNoR 'ro THE RAssIox MANUFAC- TUBING co., or CHICAGO, ILLINOIS, A CORPORATION or DELAWARE..

coUPLINs IIEIIRRRL Alilinuon mea February 14, 1921. serial No, 444,960.

To all whom it may concern.' Be it known that'I, DoUoLAs F. FEsLEn, a citizen of the United -States,.residin at Evanston, in the countyo Cook and `tate -of Illinois, have invented certain new and useful Improvements in Coupling Members, of which the following isa full, clear, conoise, and exact description, reference being had to the accompanying drawings, forming a prt of this specification. l

L y invention relates to improvements in coupling' members and ,is particularly .concernedwith improvements in that type of coupling member forming a part of a lubricating system comprising a plurality of nipples adapted tobe secured tothe various bearings to be lubricated and a compressor for supplying lubricant to said nipples, com prising a discharge conduit'provded at its 29 free ends with a couplin Lada ted to be attached to and detachedv om` t e nipples.:`

The objects of my invention are First; to provide a coupling of* the character described whichcomprises a plurality of discharge bores or openingand means for connecting any one of sai bores with a lubricant receiving nipple, the` said connect- .ing means preferably being located at dif'- ferent anglesA to each other so as to make 1t possible to ap roach nipples located `at vari` ous angles'an in different parts of a mechal nism without requiring excessive flexing or bending of the flexible discharge condult of the compressori'.

Y Second; to provide a coupling of the character described whichV comprises means for releasing the pressure of the lubricant upon the nipple without necessarily releasing the pressure upon the lubricant in the compressor so as to make it possible to disconnect the coupling from the nipple without reducing the pressure in the compressor,V

and

Third; to provide a couplingv of the character described which "is slm le in construction and economical to manu acture.

Other objects of my invention will definitely appear as this description progresses, reference being had to lthe accompanying drawings, in which l Figure 1 is a prspective view of a lubricant compressor, the discharge conduit of which is provided with my improved coupling.

Figure 2 is a central longitudinal section through my improved coupling showing the valve in one position. v

Figures3 and 4 are sectional details showing the valve in two different positions, and

Figure 5 is-a central longitudinal section through a modied embodiment of my invention.

Throughout the several figures, similar reference characters will be used for referring to similar parts.

The compressor of which I have illus-v trated my improved coupling member as forming 'a part comprises a'barrel 6 having a detachable cap 7 which can be removed forY f the purpose of filling the barrel. A threaded nut 8 extends through the cap and coacts v with a threaded rod 9 the inner end of which is provided with a suitable plunger,

not shown, ,and theouter-end of whichl is' provided with -a handle 10 by means"4 of which the rod 9 can be rotated to move the plunger longitudinally ofthe barrel 6.

'flexible discharge conduit 11 is connected with the end of the barrel opposite the cap 7 and is preferably formed. of flexible vmetallic hose or' tubing capable of withstanding comparatively high pressures.

My improved coupling which I have designated in Figure 1 by thev referenceucharacter C comprises (see Figure 2) a body member 12 which is illustrated as being substantially rectangular` in cross-section. This body member is provided with a plu;l ralty of bores 13,14 and 15 which meetin" the body member at a common point. 513A union 16 is threaded into the body member 12 and provided with a bore 17 which communicates with the bore 13. 'The outer end of the union .16 comprises an annular flange 18 and a' concentric nilpple 19 to which the free end of `the disc' arge conduit 11 is soldered or otherwise The bores 14. and 15 Open through two dilferent faces vof the body member 12v which are disposed at angles to each other and are enlarged at their outer ends ,for receiving v y theA cup-'leathers 20i and 21, respectively.

These cup-leathers are yieldingly urged outwardly by means of compression springs 22 and 23, respectively which are interposed between the cup-leathers and the bottoms of the enlarged portions oi the bores 14 and 15, respectively.

For preventing the cup-leathers or gaskets from being completely displaced from their 'respective bores, I provide a retaining memplaced from the body member under the tensionof the compression springs.

For providing means for detachably connecting the body member to the headed nipples 27, a detailed description of the construction of ,whichf may be found in, my

co-pending application, Case 23, p filed of even date herewith, I provide a second'metal strap which is considerably thicker than the metal strap 24 and'which is similarly' bent around the four sides of the body member 12, two of its sides 31 and'32 being held -in parallel spaced relation to the adjacent sides of the body member 12.' Two slots 33 and 34 arecut in the strap 30. These slots extend to the adjacent side which lis cut away as shown at 35 in Figure 1, to provide flanges adapted to be re- -ceived by the annular groove 36 which forms the head of the nipple 27. These slots provide means for connecting the coupling member to a nipple at .two different angles so vas to make it possible to `make this connection without unduly flexing the cable, and makes it possible for the operator to approach the nipple and make ,the connection b movements in ,dilerent direc-y tions, and t use enables him to reach nipples which might otherwise be inaccessib e.

The opposed ends 40 and 41 of the strap' 24, and42 and 43, of the strap 32, are

bclamped to one face ofthe body member 12 by the over-hanging portion of the union 16 as shown in Figure 2.

.The bores 13,114 and 15 are` intersected by a third bore 45' which extends `at right angles to the bores 13, 14 and 15` and in which is rotatably mounted a three way valve 46 which -isprovidedY Awith a handle 47 b meansof which it can be rotated.

tion of this valve for making connection between the bore 13 andthe bore 15 and thus supply lubricant to a nipple connected,

il shown/zn Figure 2. YWheuthe valve is then turned to the position shown in Figure 2, the supply of lubricant to the nipple is shut o and the bore 13 is connected with the bore 14, thereby permitting the lubricant in the bore 13 and the passageway of the valve to expand so as to relieve the pressure on the head of the nipple 27 and thus permit it to be disconnected from the coupling member. It will, of course, be understood that in the absence of air mixed with the lubricant, the lubricant is practically non-compressible and the expansion referred to will be very slight. Nevertheless, it is necessary to permit the detachment7of the coupling member from the nipple 2 s When the valve 46 is turned to the `pcsitic-n shown in Figure 4, the ilubricant will then be supplied to a nipple communicating with the bore 14. To relieve the pressureron the nipple, it is then necessary to return the valve to the position shown in Figure 2, when the lubricant in the bore 14 and the passagewa of the valve will be permitted to expan into the bore 15, as described above.

Inl Figure 5, I have illustrated a modified form of mg invention-wherein the strap 24 shown iin body member by means of the retaining rings 50 which are .threaded into the body thebody member 12 and the metal strap igure 2 is dispensed ,with and the gaskets 20 and 21 are retained lin `the 30 are formed somewhat differently than f the corresponding elements', shown in F' 4 ure 2, but their mode of o llperationis t e same as in Figure 2 and. w' be clearl understood mere ure 5. H

while I have ascribed the deans @fmt-f struction of the preferred embodiment ofv my invention, it must beclearly understoodv from an inspection'o Figthat my invention is not limited to these `v details butis capable of -other adaptations and modifications within the scope o f the appended claims.

Havin thus described what I c aim is 1.- A couplingl com rising a body member having `a plura 't oi) bores formed therein, the inner ends o which meet at a common point and the outer ends of which respectivel open through faces of said body member ispc-sed at angles to each other means at the outer end of each bore for forming a detachable sealed connection with a secmy invention,

vond coupling, said means being formed in igure 3, I have illustrated the qbosi-y part by Aa continuous stripV passing around said body member and having openings therein for receiving said` second coupling,

2. A coupling comprising a body member having two bores formed therein. the outer ends of which are open, means at the outer end of one bore for making a quick detachable sealed detachable connection with e second coupling, .comprising a continuous strip passing aroumi said Abody mem- 10 ber, and means for establishingcommun'ication between said bores.

In witnesswhereof, I hereunto subscribe `my name this 27th day of January, 1921.

DOUGLAS F. FESLER.

Witnesses: v

EDNA V. GUsTAFsoN, E. J. BOURGEOIS. 

